package day03;

public class OperDemo5 {
    public static void main(String[] args) {
        //5)字符串连接运算符:+
        int age = 40;
        System.out.println("age="); //age=
        System.out.println(age);    //40
        System.out.println("age="+age); //age=40
        System.out.println("我今年"+age+"岁了"); //我今年40岁了

        String name = "WKJ"; //声明字符串型变量name，并赋值为WKJ
        System.out.println("大家好，我叫"+name); //大家好，我叫WKJ
        System.out.println("大家好，我叫"+name+"，今年"+age+"岁了"); //大家好，我叫WKJ，今年40岁了

        System.out.println(10+20+""+30); //3030---------String
        System.out.println(""+10+20+30); //102030-------String
        System.out.println(10+20+30+""); //60-----------String
    }
}
